Why checking a commercial service-charge statement almost always pays off
Commercial leases are largely governed by freedom of contract – unlike residential premises, where the legislator protects tenants through numerous safeguards. For you as a commercial tenant, this means: the service charges you bear are determined primarily by your lease, not by a statutory catalogue. That is precisely why errors creep into commercial statements more often than average – wrong allocation keys, cost types that were never agreed, or vacancy that is not taken into account. A structured review is therefore not a sign of mistrust but cost management. If you operate several sites, the impact of every single error multiplies. 8
Before you start: Prefer not to work through the steps manually? Boomerent analyzes your statement automatically against the lease and the operating-costs regulation and makes anomalies visible — the guide below will still help you interpret the results.
Step 1 – Check the deadline: how long does the landlord have?
This is the most important difference from residential premises. For residential premises, Section 556 (3) BGB requires the landlord to issue the statement by the end of the twelfth month after the end of the accounting period at the latest; after that, an additional claim is generally excluded. 1
Key fact for commercial tenants
For commercial leases, the 12-month exclusion period (Ausschlussfrist) does not apply. The BGH held that Section 556 (3) BGB is not applicable by analogy to commercial leases (Section 578 BGB deliberately does not cite Section 556 BGB – no unintended regulatory gap). Your landlord can therefore still claim arrears even after more than twelve months – unless an exclusion period is expressly agreed in the lease. So check your contract first. 2
Even without an exclusion period, additional claims become time-barred. The standard limitation period (Verjährung) of three years applies (Section 195 BGB), starting at the end of the year in which the claim arose and you became aware of it (Section 199 (1) BGB). 5,6
Step 2 – Is the statement formally proper?
A statement must be comprehensible. The benchmark is Section 259 BGB: it requires an orderly compilation of income and expenditure, together with the customary supporting documents. Check whether the statement contains at least these components: 4
- a compilation of the total costs per cost type
- the allocation key (distribution key) applied
- the calculation of your share
- deduction of the advance payments you made
- the accounting period and reference to the property
If a core component is missing, the statement may already be formally invalid.
Step 3 – Are the costs allocable at all?
For residential premises, Section 2 BetrKV determines conclusively which 17 types of operating cost are allocable – for example property tax, water/sewage, heating, lift, refuse, building cleaning, lighting, insurance, caretaker and "other operating costs" (no. 17). For commercial premises, this catalogue serves only as an aid to interpretation: in principle, only what the lease expressly names is allocable. 3,8
The decisive commercial difference: cost types that are not allocable for residential premises may be transferred by contract in the commercial context – in particular management costs and maintenance/repair costs. The BGH even permits the allocation of "all operating costs" via a standard-form contract. For maintenance costs, however, the clause must contain an upper limit (cap); otherwise it fails to withstand review of standard terms (AGB-Kontrolle) and is invalid. 7
| Cost type | Residential | Commercial |
|---|---|---|
| Operating costs under Section 2 BetrKV (water, refuse, lift …) | allocable | allocable if named in the contract |
| Management costs | not allocable | allocable if agreed |
| Maintenance/repair | not allocable | only with a cost cap |
| Costs for vacant floor space | landlord bears the share | landlord bears the share |
Allocable vs. non-allocable – guidance (not a substitute for reviewing the contract). 3,7
Step 4 – Is the allocation key correct?
In the commercial context there is no statutory default key. What matters is what the lease regulates transparently and effectively. Compare the key used in the statement (e.g. floor area, consumption, units) with the one agreed in the contract. If the statement deviates from it or no rule exists at all, the allocation may be open to challenge. Pay particular attention to vacancy: if part of the property stands empty, the costs attributable to it may generally not be passed on to the remaining tenants. 8
Step 5 – Inspect the documents and request evidence
As a commercial tenant, you too have a right to inspect the supporting documents in order to review the costs charged. Request access in writing. This lets you reconcile invoice amounts, distribution keys and opening/closing balances (e.g. for heating costs) against the original documents. 8
Practical review checklist
- Consult the lease: which cost types and which key are agreed? Is there an exclusion period?
- Note the accounting period and the date of receipt (keep the limitation period in mind).
- Check the formal components (Section 259 BGB): total costs, key, share, advance payments.
- Reconcile each cost type against the contract – strike out items that were not agreed.
- Management/maintenance costs: agreed? Is a cap in place?
- Check the allocation key and the treatment of vacancy.
- Request access to the documents and reconcile the invoices.
- In case of objections: object in writing, within the deadline.
Typical sources of error
The most common are: cost types not agreed in the contract, inadmissible management or maintenance allocations without an upper limit, a wrong allocation key or one that deviates from the contract, vacancy passed on to tenants, and arithmetic errors in advance payments. Precisely when several sites are involved, a systematic, automated review pays off.
Renting retail space – perhaps even across several branches? How Boomerent analyzes service-charge statements specifically for retail and chains, across all locations, is shown on service-charge analysis for retail.
Free checklist: Go through your commercial service-charge statement in 8 steps yourself — with the sections and case references from this article. Get the audit checklist.
This article is general information and does not replace individual legal advice.
Frequently asked questions
How long does the landlord have to issue the service-charge statement for commercial premises?
For commercial leases, the statutory 12-month exclusion period of Section 556 (3) BGB does not apply – the BGH ruled out its application by analogy (judgment of 27.01.2010, case no. XII ZR 22/07). The landlord can therefore, in principle, issue the statement and claim arrears later too, provided the lease does not stipulate a deadline. However, additional claims become time-barred after three years.2,5,6
Which service charges are allocable in a commercial lease?
In a commercial lease, only what the lease expressly names is generally allocable. The catalogue of Section 2 BetrKV serves as a guide. Unlike with residential premises, management and maintenance costs can also be allocated – the latter only with an agreed cost cap.3,7,8
How long can I challenge a commercial service-charge statement?
There is no fixed statutory objection period for commercial premises as there is for residential premises. First check whether your lease provides for a deadline. Repayment claims become time-barred under the standard limitation period of three years (Section 195 BGB), calculated from the end of the year in which the claim arose and became known to you (Section 199 (1) BGB).5,6
What should you do about an incorrect statement?
First request access to the supporting documents in writing to review the costs. Then submit a written, reasoned objection to the contested items within the deadline and, where appropriate, withhold disputed arrears subject to reservation. For larger amounts or multiple sites, a professional or legal review is advisable.8
Sources
- 1Section 556 BGB – Agreements on operating costs — Federal Ministry of Justice (gesetze-im-internet.de), accessed 2026-07-06
- 2One-year deadline for service-charge statements not applicable to commercial leases (on BGH, judgment of 27.01.2010) — Schindhelm Rechtsanwaltsgesellschaft (BGH XII ZR 22/07), accessed 2026-07-06
- 3Section 2 BetrKV – List of operating costs — Federal Ministry of Justice (gesetze-im-internet.de), accessed 2026-07-06
- 4Section 259 BGB – Scope of the duty to render account — Federal Ministry of Justice (gesetze-im-internet.de), accessed 2026-07-06
- 5Section 195 BGB – Standard limitation period — Federal Ministry of Justice (gesetze-im-internet.de), accessed 2026-07-06
- 6Section 199 BGB – Commencement of the standard limitation period — Federal Ministry of Justice (gesetze-im-internet.de), accessed 2026-07-06
- 7BGH: Allocation of "all operating costs" in commercial leases — Haufe, accessed 2026-07-06
- 8Operating costs: commercial tenants are generally worse off — deutschesmietrecht.de, accessed 2026-07-06

Co-founder, Boomerent
Co-founder of Boomerent, PhD (University of Tor Vergata, Rome) in artificial intelligence and machine learning. Over 10 years of experience in automation, AI and software, across business and research — at TH Wildau and as an AI consultant at adesso and Sixt; he has also founded startups such as notivo and markencheck.ai. At Boomerent he builds the AI that extracts and analyzes contracts, costs, and deadlines. Writes about what that analysis surfaces in real leases — service charges, clauses, and deadlines.
